Nov 15 2021 11:29 AM
Nov 15 2021 11:29 AM
I have come across an issue that I don't if anyone has come across and found a fix?
I have a few handheld radios that I need to update the frequencies and when I connect to the USB, it fails to connect. In device manager and Ports it says - "Please install corresponding PL2303 driver to support Windows 11 and further OS"
I have tried different ways and still it won't update drivers/COM ports. I've run out of ideas (as for a novice).
Has anyone been across this and sorted it?
Nov 15 2021 08:05 PM
This helped me to find a workaround:
Nov 16 2021 05:32 AM
Nov 16 2021 05:39 AM - edited Nov 16 2021 05:41 AMSolution
I tried the older driver available here:
And this seemed to work for Windows 11. Weird that an old driver works better than the latest one.
I have the PL-2303 TA chipset.
Nov 16 2021 09:37 AM
Nov 19 2021 09:24 AM - edited Nov 19 2021 09:27 AM
As per @ejohanson, the older version resolves the issue. So this is how I did it:
I had the latest driver installed, and when I rolled back, it installed 3.9.1, which resolved the issue.
Nov 22 2021 11:08 AM - edited Nov 22 2021 11:10 AM
There is a working driver at http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41, a bit down the page listed as "DCHU (for PC Vendors)". Getting it installed is a bit tricky, it seems. What I did is this:
First install the downloaded driver by unpacking the zip file and "pnputil /add-driver *.inf /subdirs /install" (the /install is probably not necessary) from the extracted "Win11_DCHU" directory. It will add the two driver packages to the driver store and tell you what oemXY.inf files it has assigned to them.
Then "pnputil /enum-drivers", and in the output look for Prolific drivers other than the ones from the previous step. I had only one other entry, a "ser2pl.inf" version "09/16/2021 18.104.22.168".
Disconnect the device, and "pnputil /delete-driver oemXY.inf" with the INF file you located in the previous step.
Connect the device again, and it should work, at least, it does for me. The problem is probably that the non-working driver is the newest (September 2021 vs. July for the ones from the download page) and so Windows prefers it over them.
Nov 26 2021 12:28 PM
@chrullrich Thank you, this worked for me also. But won't Windows update put the newer driver back again? Can I prevent that from happening?
Dec 07 2021 07:34 PM
Windows 11 update loaded Prolific PL2303 driver 22.214.171.124 and when I go to device manager it says "Please install corresponding PL2303 driver to support Windows 11 and further OS" This driver does not even attempt to communicate with my X10 CM11 hooked to my serial port. I had to go to Prolific website and load their current driver 126.96.36.1997. (uninstall driver first) Serial to X10 device now working fine. Don't install Windows update for Prolific or it will change it back.
Dec 10 2021 11:27 AM
Dec 10 2021 11:31 AM
Dec 15 2021 04:28 PM
This worked for me. Downloaded the driver, ran the install it removed the older version. Ran installer again and error for my comm port is now gone. @averyfreeman
Dec 16 2021 08:04 AM - edited Dec 16 2021 08:06 AM
Thank you, This driver worked for me too.
Dec 23 2021 11:44 AM
@chrullrich Yes is there a way from the new prolific driver from reinstalling itself at every update? Do you know of a way that it doesnt keep going to the new PL driver?
Jan 01 2022 04:21 PM
It works for me too ,I try the new version and didnt see it , but after installing a couple of times it works . Also I uninstall the previous version before .
Thanks Guys to the TIP
Jan 03 2022 10:48 AM
Jan 18 2022 06:09 AM
Thanks for the info, this solved a problem with a Windows 11 installation and a jewelry engraver.